This paper investigates some of the possibilities of applying Prototype Theory to the categorization of English verbs. Throughout its development, Prototype Theory has been mainly focused on nouns, adjectives and prepositions with very few excursions into the realms of the other parts of speech. The paper will include a short summary of the existing attempts to approach verbs from a prototypical perspective. Using verb frequency tests, it will try to find those semantic features of verbs that might be relevant to the process of categorization. This will be done by means of analysing two classes of verbs and finding their appropriate semantic features. The result of this analysis will be presented in two columns and graphs, showing how the verbs in question are graded within their categories.